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A10 Networks Thunder ADC vs NetScaler comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 1, 2026

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
7.0
A10 Networks Thunder ADC boosts ROI within six months, cutting costs, saving money, and improving operational efficiency for users.
Sentiment score
8.1
NetScaler ensures data security and operational efficiency, providing significant cost savings and stability for medium enterprises.
We do see a return on investment and cost reductions after the implementation of A10 Networks Thunder ADC.
Head Of Technical And Network Security at Connex Information Technologies
 

Customer Service

Sentiment score
6.9
A10 Networks Thunder ADC offers effective support with excellent response times, but some users desire more comprehensive materials and faster urgent responses.
Sentiment score
6.1
Citrix support is responsive and knowledgeable, though some users report delays and prefer direct access to experienced engineers.
Their tech support is very responsible, and their response time is very low, providing superb support.
PM at Connex Information Technologies
The support we receive from the team is quite excellent.
Head Of Technical And Network Security at Connex Information Technologies
 

Scalability Issues

Sentiment score
6.9
A10 Networks Thunder ADC efficiently scales across regions, supporting enterprises with easy integration, load balancing, and growth management.
Sentiment score
7.8
NetScaler is praised for high scalability and flexibility, despite some challenges with licensing complexity and multi-tenancy support.
A10 Networks Thunder ADC can handle growth easily, and I have scaled up during higher traffic periods.
Senior Consultant and Creative Director at a consultancy with 11-50 employees
A10 Networks Thunder ADC's scalability is impressive.
IT Architecture Manager at a government with 10,001+ employees
 

Stability Issues

Sentiment score
8.2
A10 Networks Thunder ADC is highly stable, reliable, and handles demanding environments with features like DDoS protection and regular updates.
Sentiment score
7.6
NetScaler is highly rated for stability and performance, with some recommending regular maintenance for optimal reliability.
In some of our deployments of A10 Networks Thunder ADC, we have employed DDoS and other security features, and for the past few years, we haven't experienced any major incidents.
Head Of Technical And Network Security at Connex Information Technologies
Most of the time, it just runs in the background without issues.
Senior Consultant and Creative Director at a consultancy with 11-50 employees
 

Room For Improvement

A10 Networks Thunder ADC requires UI improvements, better API docs, third-party integration, enhanced logging, scalability, and pricing structure refinement.
NetScaler needs improvements in usability, stability, security integration, and support while enhancing documentation, pricing transparency, and deployment processes.
Having more structured, real-world configuration examples would make a big difference, especially for teams that are new to the platform, helping reduce the initial learning curve for them.
Senior Consultant and Creative Director at a consultancy with 11-50 employees
In the vThunder series of A10 Networks Thunder ADC, they have a perpetual license model and a subscription model, but in the Thunder series, the physical appliance does not have a perpetual license model, mainly operating on the subscription model.
PM at Connex Information Technologies
Enhanced integration with third-party tools would be beneficial.
IT Architecture Manager at a government with 10,001+ employees
 

Setup Cost

A10 Networks Thunder ADC is cost-effective compared to F5, with flexible pricing and varying support costs based on requirements.
NetScaler pricing is high but offers strong features; cost-saving options include alternatives or negotiating multi-year subscriptions.
I estimate that I can save around 20 to 30 percent of my budget with A10 Networks Thunder ADC.
Head Of Technical And Network Security at Connex Information Technologies
 

Valuable Features

A10 Networks Thunder ADC offers load balancing, SSL offloading, security, scalability, and cost efficiency ideal for cloud environments.
NetScaler provides flexible deployment, security enhancements, and integration with Citrix for efficient application delivery and robust traffic management.
Application load balancing in A10 Networks Thunder ADC plays a crucial role in improving application reliability during peak periods.
PM at Connex Information Technologies
What really stands out to me about A10 Networks Thunder ADC is how customizable, performant, and automated the platform is.
IT Architecture Manager at a government with 10,001+ employees
I would assess A10 Networks Thunder ADC's load balancing for improving application reliability during peak periods at around 9 out of 10, as GSLB is far better, and we are very satisfied with it.
Head Of Technical And Network Security at Connex Information Technologies
 

Categories and Ranking

A10 Networks Thunder ADC
Ranking in Application Delivery Controllers (ADC)
11th
Average Rating
8.4
Reviews Sentiment
7.0
Number of Reviews
26
Ranking in other categories
No ranking in other categories
NetScaler
Ranking in Application Delivery Controllers (ADC)
2nd
Average Rating
8.4
Reviews Sentiment
7.0
Number of Reviews
107
Ranking in other categories
Network Management Applications (14th), Web Application Firewall (WAF) (15th)
 

Mindshare comparison

As of May 2026, in the Application Delivery Controllers (ADC) category, the mindshare of A10 Networks Thunder ADC is 5.6%, up from 5.0% compared to the previous year. The mindshare of NetScaler is 12.1%, down from 14.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Delivery Controllers (ADC) Mindshare Distribution
ProductMindshare (%)
NetScaler12.1%
A10 Networks Thunder ADC5.6%
Other82.3%
Application Delivery Controllers (ADC)
 

Featured Reviews

reviewer2817921 - PeerSpot reviewer
IT Architecture Manager at a government with 10,001+ employees
Application delivery has improved and security now ensures reliable high‑traffic e‑commerce
A10 Networks Thunder ADC offers several strong features that make it a very competitive solution. First, they provide advanced Layer 4 or Layer 7 load balancing. Another key feature is SSL offloading and encryption handling. A10 Networks Thunder ADC is also highly scalable and flexible. Scalability for A10 Networks Thunder ADC shows up in my day-to-day operations during high-traffic events such as Black Friday. One feature I find really powerful and something underrated about A10 Networks Thunder ADC is A-Flex. Beyond the standard ADC feature, what really stands out to me about A10 Networks Thunder ADC is how customizable, performant, and automated the platform is. A10 Networks Thunder ADC has a significant impact on my organization in several ways. First, it improves application availability and performance. From a security perspective, it helps protect applications against threats such as DDoS attacks. It also has a strong operational impact. In terms of cost, it can lower both CapEx and OpEx.
AR
IT Security Specialist at a educational organization with 201-500 employees
Allows students and lecturers access to necessary software for their courses cost-effectively
I am a consultant and do not recommend specific products. I work with customers, and they decide what they want to buy. I'm a CISO as a service, dealing with security. I'm from an integrator company, and they usually sell a few products. One customer uses NetScaler for a VDI system with Citrix…
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Top Industries

By visitors reading reviews
Manufacturing Company
9%
Computer Software Company
8%
Government
7%
Financial Services Firm
7%
Computer Software Company
10%
Manufacturing Company
9%
Financial Services Firm
8%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business13
Midsize Enterprise6
Large Enterprise13
By reviewers
Company SizeCount
Small Business44
Midsize Enterprise24
Large Enterprise57
 

Questions from the Community

Which is the best DDoS protection solution for a big ISP for monitoring and mitigating?
I would recommend A10 Networks due that it delivers high performance in a small form factor to reduce OPEX with significantly lower power usage, rack space, and cooling requirements compared to oth...
Do you recommend A10 Networks Thunder ADC?
I do recommend A10 Networks Thunder ADC. It's very user-friendly, easy to configure, and flexible. It is a very useful solution - especially now, when a lot of employees are working remotely. I hav...
What is your experience regarding pricing and costs for A10 Networks Thunder ADC?
I estimate that I can save around 20 to 30 percent of my budget with A10 Networks Thunder ADC, though it's not an exact figure.
What advice do you have for others considering Citrix NetScaler?
Each product has its advantages, and combining certain features of F5 and NetScaler could be beneficial. I'd rate the solution eight out of ten.
What is your experience regarding pricing and costs for Citrix ADM?
Regarding pricing, educational institutes often receive better prices. In the context of virtualization, prices are increasing, affecting small to medium businesses in Israel.
 

Also Known As

Thunder ADC, AX Series
Citrix ADC, Citrix NetScaler VPX, NetScaler Console, NetScaler Web Application Firewall, NetScaler VPX - Customer Licensed
 

Overview

 

Sample Customers

123inkt.nl, Bentley University, Box, Brainshark, Buienradar, Capgemini, CGN/LSN & NAT64, Chengdu Telecom, Club One, Code Ready, CRC Health Group, Cyso, Deutsche Telekom, Earth Class Mail, Excite, FFF Enterprises, Florence County, Framingham State University, From30
ABB Schweiz, Aer Lingus, AIDS Healthcare Foundation, Amnet Technology Solutions, Aramex International, Ascenty, Atos, Autodesk
Find out what your peers are saying about A10 Networks Thunder ADC vs. NetScaler and other solutions. Updated: April 2026.
893,244 professionals have used our research since 2012.